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@@ -6058,6 +6058,9 @@ class Exercise
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$question = $item['question'];
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$file = $item['generated_oral_file'];
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$answer = $item['answer'];
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+ if ($answer == 0) {
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+ $answer = '';
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+ }
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$answer_type = $item['answer_type'];
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if (!empty($question) && (!empty($answer) || !empty($file)) && $answer_type == ORAL_EXPRESSION) {
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if (!empty($file)) {
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